This is a kioslave for KDE to handle 7zip files.
Simply, enter 'p7zip:/path_to_file/filename.7z' in konqueror to use this.
You got to have the p7zip executable in $PATH to p7zip kioslave work. Get it in http://p7zip.sourceforge.net/.

If you want to open a 7zip archive only double-clicking in it, you have to apply a patch to kdebase. This patch is already in kdebase CVS version (20041107), but not in kdebase 3.3.x.
Look at http://www.kde-apps.org/content/show.php?content=17527 how to apply the patch.

Bugs and suggestions should go to Raul Fernandes<rgfbr@yahoo.com.br>.